Arduino - Cast | History

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Reference.Cast History

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April 16, 2007, at 12:09 PM by Paul Badger -

Changed line 31 from:

Reference Home

to:

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April 15, 2007, at 10:54 PM by David A. Mellis -

Added lines 11-16:

Parameters:

type: any variable type (e.g. int, float, byte)

variable: any variable or constant

Changed lines 27-32 from:

Parameters:

type: any variable type (e.g. int, float, byte)

variable: any variable or constant

to:

Note

When casting from a float to an int, the value is truncated not rounded. So both (int) 3.2 and (int) 3.7 are 3.

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April 15, 2007, at 10:53 PM by David A. Mellis -

Changed lines 3-6 from:

Description:

The cast operator traslates one variable type into another and forces calculations to be performed in the cast type.

to:

Description

The cast operator translates one variable type into another and forces calculations to be performed in the cast type.

Changed lines 13-14 from:

[@int i;

to:

[@ int i;

Changed lines 16-17 from:

f = (float)i * 10

to:

f = 3.6; i = (int) f; // now i is 3

Deleted lines 26-36:

Example Code

int x;
float f;


f = i / 2;        // f contains 0 - integer math can't hold fraction
f = (float)i / 2; // f contains .5 - cast forces floating point math on right side of equation

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April 15, 2007, at 10:48 PM by David A. Mellis -

Changed lines 9-10 from:

(variableType1)variableType2

to:

(type)variable

Changed lines 21-24 from:

variableType1: any variable type

variableType2: any variable type

to:

type: any variable type (e.g. int, float, byte)

variable: any variable or constant

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April 15, 2007, at 05:38 PM by Paul Badger -

Changed line 36 from:

Reference Home ?

to:

Reference Home

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April 15, 2007, at 05:36 PM by Paul Badger -

Changed lines 33-36 from:

to:

Reference Home ?

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April 15, 2007, at 05:35 PM by Paul Badger -

Changed line 16 from:

f = (float)i

to:

f = (float)i * 10

Changed lines 31-32 from:

f = i / 2; // f contains 0 - integer math can't hold fraction f = (float)i / 2; f contains .5 - cast forces floating point math on right side of equation

to:

f = i / 2; // f contains 0 - integer math can't hold fraction f = (float)i / 2; // f contains .5 - cast forces floating point math on right side of equation

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April 15, 2007, at 05:33 PM by Paul Badger -

Changed lines 31-32 from:

f = i / 2; f = (float)i

to:

f = i / 2; // f contains 0 - integer math can't hold fraction f = (float)i / 2; f contains .5 - cast forces floating point math on right side of equation

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April 15, 2007, at 05:30 PM by Paul Badger -

Changed lines 9-10 from:

(variable type)variable

to:

(variableType1)variableType2

Changed line 13 from:

[@int x;

to:

[@int i;

Added lines 17-32:

Parameters:

variableType1: any variable type

variableType2: any variable type

Example Code

[@int x; float f;

f = i / 2; f = (float)i

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April 15, 2007, at 05:27 PM by Paul Badger -

Changed line 13 from:

int x;

to:

[@int x;

Added line 17:

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April 15, 2007, at 05:26 PM by Paul Badger -

Changed lines 7-16 from:

Syntax

to:

Syntax

(variable type)variable

Example

int x; float f;

f = (float)i

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April 15, 2007, at 05:19 PM by Paul Badger -

Changed line 7 from:

yntax

to:

Syntax

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April 15, 2007, at 05:19 PM by Paul Badger -

Added lines 1-7:

Cast

Description:

The cast operator traslates one variable type into another and forces calculations to be performed in the cast type.

yntax

Restore